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Old 02-20-2009, 11:50 PM
Brian Carlton Brian Carlton is offline
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Join Date: May 2002
Location: Blue Point, NY
Posts: 25,396
Quote:
Originally Posted by 83240D View Post
Yeah, you should be fine. I have found that engineers will usually give bonus tolerance on specs. For example, if a part seriously and truly needs a tolerance .002 then he will specify on the blueprint, a tolerance of .0005............

If you really knew how little most engineers know about tolerancing and how small .0005" actually is............you'd be amazed.

The reason they specify .0005" is because they can.........not because they are confident that it's absolutely necessary for the component to function. In just about every case, it cannot be necessary for function unless the component is going to operate in a temperature controlled room.

Occasionally we specify .0005" for a tolerance when we want a specific fit to the jet engine part.........it must not assemble at room temperature but must assemble at about 200°F. That forces our hand into tolerances of this magnitude.
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